Measurement of J/ψ and ψ(2S) Prompt Double-Differential Cross Sections in pp Collisions at $\sqrt{s}$=7 TeV

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EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH (CERN)

CERN-PH-EP/2013-037 2015/05/19

CMS-BPH-14-001

Measurement of prompt J/ψ and ψ

(

2S

)

double-differential

cross sections in pp collisions at

√

s

=

7 TeV

The CMS Collaboration

∗

Abstract

The double-differential cross sections of promptly produced J/ψ and ψ(2S) mesons

are measured in pp collisions at√s = 7 TeV, as a function of transverse momentum

pT and absolute rapidity|y|. The analysis uses J/ψ and ψ(2S)dimuon samples

col-lected by the CMS experiment, corresponding to integrated luminosities of 4.55 and

4.90 fb−1, respectively. The results are based on a two-dimensional analysis of the

dimuon invariant mass and decay length, and extend to pT = 120 and 100 GeV for

the J/ψ and ψ(2S), respectively, when integrated over the interval|y| < 1.2. The

ra-tio of the ψ(2S) to J/ψ cross sections is also reported for |y| < 1.2, over the range

10 < pT < 100 GeV. These are the highest pTvalues for which the cross sections and

ratio have been measured.

Published in Physical Review Letters as doi:10.1103/PhysRevLett.114.191802.

c

2015 CERN for the benefit of the CMS Collaboration. CC-BY-3.0 license

∗_{See Appendix B for the list of collaboration members}

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Studies of heavy-quarkonium production are of central importance for an improved under-standing of nonperturbative quantum chromodynamics (QCD) [1]. The nonrelativistic QCD (NRQCD) effective-field-theory framework [2], arguably the best formalism at this time,

factor-izes high-pT quarkonium production in short-distance and long-distance scales. First a heavy

quark-antiquark pair, QQ, is produced in a Fock state2S+1L[_Ja], with spin S, orbital angular

mo-mentum L, and total angular momo-mentum J that are either identical to (color singlet, a = 1) or

different from (color octet, a= 8) those of the corresponding quarkonium state. The QQ cross

sections are determined by short-distance coefficients (SDC), kinematic-dependent functions

calculable perturbatively as expansions in the strong-coupling constant αs. Then this

“preres-onant” QQ pair binds into the physically observable quarkonium through a nonperturbative evolution that may change L and S, with bound-state formation probabilities proportional to long-distance matrix elements (LDME). The LDMEs are conjectured to be constant (i.e., in-dependent of the QQ momentum) and universal (i.e., process inin-dependent). The color-octet terms are expected to scale with powers of the heavy-quark velocity in the QQ rest frame. In the nonrelativistic limit, an S-wave vector quarkonium state should be formed from a QQ pair produced as a color singlet (3S[₁1]) or as one of three color octets (1S[₀8],3S₁[8], and3P_J[8]).

Three “global fits” to measured quarkonium data [3–5] obtained incompatible octet LDMEs, despite the use of essentially identical theory inputs: next-to-leading-order (NLO) QCD calcu-lations of the singlet and octet SDCs. The disagreement stems from the fact that different sets of measurements were considered. In particular, the results crucially depend on the minimum

pT of the fitted measurements [6], because the octet SDCs have different pTdependences. Fits

including low-pTcross sections lead to the conclusion that, at high pT, quarkonium production

should be dominated by transversely polarized octet terms. This prediction is in stark contra-diction with the unpolarized production seen by the CDF [7, 8] and CMS [9, 10] experiments, an observation known as the “quarkonium polarization puzzle”. As shown in Ref. [6], the

puz-zle is seemingly solved by restricting the NRQCD global fits to high-pT quarkonia, indicating

that the presently available fixed-order calculations provide SDCs unable to reproduce reality

at lower pTvalues or that NRQCD factorization only holds for pT values much larger than the

quarkonium mass. The polarization measurements add a crucial dimension to the global fits because the various channels have remarkably distinct polarization properties: in the helicity

frame,3S[₁1]is longitudinally polarized,1S₀[8]is unpolarized,3S₁[8]is transversely polarized, and

3_P[8]

J has a polarization that changes significantly with pT. Bottomonium and prompt

charmo-nium polarizations reaching or exceeding pT = 50 GeV were measured by CMS [9, 10], using

a very robust analysis framework [11, 12], on the basis of event samples collected in 2011. In-stead, the differential charmonium cross sections published by CMS [13] are based on data

collected in 2010 and have a much lower pT reach. Measurements of prompt charmonium

cross sections extending well beyond pT = 50 GeV will trigger improved NRQCD global fits,

restricted to a kinematic domain where the factorization formalism is unquestioned, and will provide more accurate and reliable LDMEs.

This Letter presents measurements of the double-differential cross sections of J/ψ and ψ(2S)

mesons promptly produced in pp collisions at a center-of-mass energy of 7 TeV, based on dimuon event samples collected by CMS in 2011. They complement other prompt charmo-nium cross sections measured at the LHC, by ATLAS [14, 15], LHCb [16, 17], and ALICE [18].

The analysis is made in four bins of absolute rapidity (|y| <0.3, 0.3< |y| <0.6, 0.6< |y| <0.9,

and 0.9 < |y| < 1.2) and in the pT ranges 10–95 GeV for the J/ψ and 10–75 GeV for the ψ(2S).

A rapidity-integrated result in the range|y| < 1.2 is also provided, extending the pT reach to

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ratios are also reported. The dimuon invariant mass distribution is used to separate the J/ψ

and ψ(2S)signals from other processes, mostly pairs of uncorrelated muons, while the dimuon

decay length is used to separate the nonprompt charmonia, coming from decays of b hadrons, from the prompt component. Feed-down from decays of heavier charmonium states, approxi-mately 33% of the prompt J/ψ cross section [19], is not distinguished from the directly produced charmonia.

The CMS apparatus is based on a superconducting solenoid of 6 m internal diameter, providing a 3.8 T field. Within the solenoid volume are a silicon pixel and strip tracker, a lead tungstate crystal electromagnetic calorimeter, and a brass and scintillator hadron calorimeter. Muons are measured with three kinds of gas-ionization detectors: drift tubes, cathode strip chambers, and resistive-plate chambers. The main subdetectors used in this analysis are the silicon tracker and the muon system, which enable the measurement of muon momenta over the pseudorapidity

range|η| <2.4. A more detailed description of the CMS detector, together with a definition of

the coordinate system used and the relevant kinematic variables, can be found in Ref. [20]. The events were collected using a two-level trigger system. The first level, made of custom hardware processors, uses data from the muon system to select events with two muon candi-dates. The high-level trigger, adding information from the silicon tracker, reduces the rate of

stored events by requiring an opposite-sign muon pair of invariant mass 2.8< M <3.35 GeV,

pT > 9.9 GeV, and|y| < 1.25 for the J/ψ trigger, and 3.35 < M < 4.05 GeV and pT > 6.9 GeV

for the ψ(2S)trigger. No pTrequirement is imposed on the single muons at trigger level. Both

triggers require a dimuon vertex fit χ2probability greater than 0.5% and a distance of closest

approach between the two muons less than 5 mm. Events where the muons bend towards each other in the magnetic field are rejected to lower the trigger rate while retaining the

highest-quality dimuons. The J/ψ and ψ(2S)analyses are conducted independently, using event

sam-ples separated at the trigger level. The ψ(2S)sample corresponds to an integrated luminosity

of 4.90 fb−1, while the J/ψ sample has a reduced value, 4.55 fb−1, because the pT threshold of

the J/ψ trigger was raised to 12.9 GeV in a fraction of the data-taking period; the integrated luminosities have an uncertainty of 2.2% [21].

The muon tracks are required to have hits in at least eleven tracker layers, with at least two in the silicon pixel detector, and to be matched with at least one segment in the muon

sys-tem. They must have a good track fit quality (χ2 per degree of freedom smaller than 1.8) and

point to the interaction region. The selected muons must also match in pseudorapidity and azimuthal angle with the muon objects responsible for triggering the event. The analysis is restricted to muons produced within a fiducial phase-space window where the muon

detec-tion efficiencies are accurately measured: pT > 4.5, 3.5, and 3.0 GeV for the regions|η| < 1.2,

1.2 < |η| < 1.4, and 1.4 < |η| < 1.6, respectively. The combinatorial dimuon background

is reduced by requiring a dimuon vertex fit χ2 _{probability larger than 1%. After applying the}

event selection criteria, the combined yields of prompt and nonprompt charmonia in the range

|y| < 1.2 are 5.45 M for the J/ψ and 266 k for the ψ(2S). The prompt charmonia are separated from those resulting from decays of b hadrons through the use of the dimuon pseudo-proper

decay length [22], ` = LxyM/pT, where Lxy is the transverse decay length in the laboratory

frame, measured after removing the two muon tracks from the calculation of the primary

ver-tex position. For events with multiple collision vertices, Lxy is calculated with respect to the

vertex closest to the direction of the dimuon momentum, extrapolated towards the beam line.

For each(|y|, pT)bin, the prompt charmonium yields are evaluated through an extended

un-binned maximum-likelihood fit to the two-dimensional(M,`)event distribution. In the mass

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with free mean (µCB) and width (σCB) parameters. Given the strong correlation between the

two CB tail parameters, αCBand nCB, they are fixed to values evaluated from fits to event

sam-ples integrated in broader pT ranges. A single CB function provides a good description of the

signal mass peaks, given that the dimuon mass distributions are studied in narrow (|y|, pT)

bins, within which the dimuon invariant mass resolution has a negligible variation. The mass distribution of the underlying continuum background is described by an exponential function. Concerning the pseudo-proper decay length variable, the prompt signal component is mod-eled by a resolution function, which exploits the per-event uncertainty information provided by the vertex reconstruction algorithm, while the nonprompt charmonium term is modeled by an exponential function convolved with the resolution function. The continuum background component is represented by a sum of prompt and nonprompt empirical forms. The distribu-tions are well described with a relatively small number of free parameters.

2.85 2.9 2.95 3 3.05 3.1 3.15 3.2 3.25 3.3 Events / 4 MeV 0 50 100 150 200 250 300 350 400 450 Data Total Prompt Nonprompt Background CMS ψ J/ < 32 GeV T 30 < p 0.6 < |y| < 0.9 (7 TeV) -1 4.55 fb

Dimuon invariant mass [GeV] -0.5 0 0.5 Pseudo-proper decay length [mm]1 1.5 2 2.5

m μ Events / 20 -1 10 1 10 2 10 3 10 DataTotal Prompt Nonprompt Background CMS ψ J/ < 32 GeV T 30 < p 0.6 < |y| < 0.9 (7 TeV) -1 4.55 fb

Dimuon invariant mass [GeV]

3.4 3.5 3.6 3.7 3.8 3.9 4 Events / 14 MeV 0 50 100 150 200 250 300 350 Data Total Prompt Nonprompt Background CMS (2S) ψ < 27.5 GeV T 25 < p |y| < 0.3 (7 TeV) -1 4.9 fb

Pseudo-proper decay length [mm]

-0.5 0 0.5 1 1.5 2 2.5 m μ Events / 20 -1 10 1 10 2 10 Data Total Prompt Nonprompt Background CMS (2S) ψ < 27.5 GeV T 25 < p |y| < 0.3 (7 TeV) -1 4.9 fb

Figure 1: Projections on the dimuon invariant mass (left) and pseudo-proper decay length

(right) axes, for the J/ψ (top) and ψ(2S) (bottom) events in the kinematic bins given in the

plots. The right panels show dimuons of invariant mass within ±3 σCB of the pole masses.

The curves, identified in the legends, represent the result of the fits described in the text. The vertical bars on the data points show the statistical uncertainties.

Figure 1 shows the J/ψ and ψ(2S)dimuon invariant mass and pseudo-proper decay length

pro-jections for two representative(|y|, pT)bins. The decay length projections are shown for events

with dimuon invariant mass within±3 σCBof the pole mass. In the highest pT bins, where the

number of dimuons is relatively small, stable results are obtained by fixing µCBand the slope

of the exponential-like function describing the nonprompt combinatorial background to values

extrapolated from the trend found from the lower-pTbins. The systematic uncertainties in the

signal yields are evaluated by repeating the fit with different functional forms, varying the val-ues of the fixed parameters, and allowing for more free parameters in the fit. The fit results are robust with respect to changes in the procedure; the corresponding systematic uncertainties are

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negligible at low pT and increase to≈2% for the J/ψ and≈6% for the ψ(2S)in the highest pT

bins.

The single-muon detection efficiencies eµ are measured with a “tag-and-probe” (T&P)

tech-nique [24], using event samples collected with triggers specifically designed for this purpose, including a sample enriched in dimuons from J/ψ decays where a muon is combined with an-other track and the pair is required to have an invariant mass within the range 2.8–3.4 GeV. The procedure was validated in the phase-space window of the analysis with detailed Monte Carlo (MC) simulation studies. The measured efficiencies are parametrized as a function of muon

pT, in eight bins of muon|η|. Their uncertainties, reflecting the statistical precision of the T&P

samples and possible imperfections of the parametrization, are≈2–3%. The efficiency of the

dimuon vertex fit χ2_{probability requirement is also measured with the T&P approach, using a}

sample of events collected with a dedicated (prescaled) trigger. It is around 95–97%, improving

with increasing pT, with a 2% systematic uncertainty At high pT, when the two muons might

be emitted relatively close to each other, the efficiency of the dimuon trigger eµµis smaller than

the product of the two single-muon efficiencies [13], eµµ = eµ1eµ2ρ. The correction factor ρ

is evaluated with MC simulations, validated from data collected with single-muon triggers.

For pT < 35 GeV, ρ is consistent with being unity, within a systematic uncertainty estimated

as 2%, except in the 0.9 < |y| < 1.2 bin, where the uncertainty increases to 4.3% for the J/ψ

if pT < 12 GeV, and to 2.7% for the ψ(2S)if pT < 11 GeV. For pT > 35 GeV, ρ decreases

ap-proximately linearly with pT, reaching 60–70% for pT ∼ 85 GeV, with systematic uncertainties

evaluated by comparing the MC simulation results with estimations made using data collected

with single-muon triggers: 5% up to pT = 50 (55) GeV for the J/ψ (ψ(2S)) and 10% for higher

pT. The total dimuon detection efficiency increases from eµµ ≈78% at pT =15 GeV to≈85% at

30 GeV, and then decreases to≈65% at 80 GeV.

To obtain the charmonium cross sections in each (|y|, pT)bin without any restrictions on the

kinematic variables of the two muons, we correct for the corresponding dimuon acceptance, defined as the fraction of dimuon decays having both muons emitted within the single-muon fiducial phase space. These acceptances are calculated using a detailed MC simulation of the

CMS experiment. Charmonia are generated using a flat rapidity distribution and pT

distri-butions based on previous measurements [13]; using flat pT distributions leads to negligible

changes. The particles are decayed by EVTGEN[25] interfaced toPYTHIA 6.4 [26], whilePHO

-TOS[27] is used to simulate final-state radiation. The fractions of J/ψ and ψ(2S)dimuon events

in a given(|y|, pT)bin with both muons surviving the fiducial selections depend on the decay

kinematics and, in particular, on the polarization of the mother particle. Acceptances are cal-culated using polarization scenarios corresponding to different values of the polar anisotropy

parameter in the helicity frame, λHX_ϑ : 0 (unpolarized),+1 (transverse), and−1 (longitudinal).

A fourth scenario, corresponding to λHX_ϑ = +0.10 for the J/ψ and+0.03 for the ψ(2S), reflects

the results published by CMS [10]. The two other parameters characterizing the dimuon

an-gular distributions [28], λϕ and λϑ ϕ, have been measured to be essentially zero [10] and have

a negligible influence on the acceptance. The acceptances are essentially identical for the two

charmonia and are almost rapidity independent for|y| <1.2. The two-dimensional acceptance

maps are calculated with large MC simulation samples, so that statistical fluctuations are small,

and in narrow|y|bins, so that variations within the bins can be neglected. Since the efficiencies

and acceptances are evaluated for events where the two muons bend away from each other, a factor of two is applied to obtain the final cross sections.

The double-differential cross sections of promptly produced J/ψ and ψ(2S)in the dimuon

chan-nel,Bd2σ/dpTdy, whereB is the J/ψ or ψ(2S)dimuon branching fraction, is obtained by

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efficien-5

cies and acceptance, by the integrated luminosity and the widths of the pT and|y|bins. The

numerical values, including the relative statistical and systematic uncertainties, are reported for both charmonia, five rapidity intervals, and four polarization scenarios in Tables A.1–A.4 of Appendix A. Figure 2 shows the results obtained in the unpolarized scenario. With

re-spect to the|y| < 0.3 bin, the cross sections drop by ≈5% for 0.6 < |y| < 0.9 and ≈15% for

0.9 < |y| <1.2. Measuring the charmonium production cross sections in the broader rapidity

range |y| < 1.2 has the advantage that the increased statistical accuracy allows the

measure-ment to be extended to higher-pT values, where comparisons with theoretical calculations are

particularly informative. Figure 3 compares the rapidity-integrated (unpolarized) cross

sec-tions, after rescaling with the branching fraction B of the dimuon decay channels [29], with

results reported by ATLAS [14, 15]. The curve represents a fit of the J/ψ cross section measured in this analysis to a power-law function [30]. The band labelled FKLSW represents the result of

a global fit [6] comparing SDCs calculated at NLO [3] with ψ(2S)cross sections and

polariza-tions previously reported by CMS [10, 13] and LHCb [17]. According to that fit, ψ(2S)mesons

are produced predominantly unpolarized. At high pT, the values reported in this Letter tend

to be higher than the band, which is essentially determined from results for pT <30 GeV.

[GeV] T p 0 20 40 60 80 100 120 [nb / GeV] y d_T p / d σ d B -6 10 -5 10 -4 10 -3 10 -2 10 -1 10 1 CMS -1 2) × | < 1.2 ( y | | < 0.3 y | | < 0.6 y 0.3 < | | < 0.9 y 0.6 < | | < 1.2 y 0.9 < | of 2.2% not included Luminosity uncertainty ψ J/ (2S) ψ ψ : L = 4.55 fb J/ (2S) : L = 4.90 fb ψ -1 = 7 TeV s pp 2

Figure 2: The J/ψ and ψ(2S)differential pTcross sections times the dimuon branching fractions

for four rapidity bins and integrated over the range|y| <1.2 (scaled up by a factor of 2 for

pre-sentation purposes), assuming the unpolarized scenario. The vertical bars show the statistical and systematic uncertainties added in quadrature.

The ratio of the ψ(2S)to J/ψ differential cross sections is also measured in the|y| <1.2 range,

recomputing the J/ψ values in the pT bins of the ψ(2S) analysis. The measured values are

reported in Table A.5 of Appendix A. The corrections owing to the integrated luminosity, ac-ceptances, and efficiencies cancel to a large extent in the measurement of the ratio. The total

systematic uncertainty, dominated by the ρ correction for pT > 30 GeV and by the acceptance

and efficiency corrections for pT <20 GeV, does not exceed 3%, except for pT >75 GeV, where

it reaches 5%. Larger event samples are needed to clarify the trend of the ratio for pT above

≈35 GeV.

In summary, the double-differential cross sections of the J/ψ and ψ(2S)mesons promptly

pro-duced in pp collisions at√s = 7 TeV have been measured as a function of pT in four|y|bins,

as well as integrated over the |y| < 1.2 range, extending up to or beyond pT = 100 GeV.

New global fits of cross sections and polarizations, including these high-pT measurements,

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Figure 3: The J/ψ (open symbols) and ψ(2S)(closed symbols) differential (unpolarized) cross

sections from this analysis (circles) and from ATLAS (squares) [14, 15]. The vertical bars show the statistical and systematic uncertainties added in quadrature, not including the uncertainties from integrated luminosities and branching fractions, which are indicated by the percentages given in the legend. The curve shows a fit of the J/ψ cross section measured in this analysis to a

power-law function, while the band labelled FKLSW represents a calculation of the ψ(2S)cross

section using LDMEs determined with lower-pTLHC data [6].

believed to be most reliable. The new data should also provide input to stringent tests of recent theory developments, such as those described in Refs. [31–33].

Acknowledgments

We congratulate our colleagues in the CERN accelerator departments for the excellent perfor-mance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centres and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWFW and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); MoER, ERC IUT and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Re-public of Korea); LAS (Lithuania); MOE and UM (Malaysia); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter, IPST, STAR and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU and SFFR (Ukraine); STFC (United Kingdom); DOE and NSF (USA).

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10 A Tables of cross sections

A

Tables of cross sections

Table A.1: The J/ψ differential cross section times dimuon branching fractionBdσ/dpTin four

rapidity ranges for the unpolarized scenario. The relative uncertainties (first statistical and then systematic) are given in percent. The systematic uncertainties are to be treated as bin-to-bin correlated.

∆pT Bdσ/dpT[pb/GeV]

[GeV] |y| <0.3 0.3< |y| <0.6 0.6 < |y| <0.9 0.9< |y| <1.2

10–11 1.12E+03±0.3±7.9 1.06E+03±0.3±6.2 1.02E+03±0.3±4.6 8.84E+02±0.2±5.5

11–12 6.55E+02±0.3±5.9 6.34E+02±0.3±4.8 6.20E+02±0.3±4.1 5.38E+02±0.3±4.7

12–13 4.06E+02±0.3±5.0 3.97E+02±0.3±4.3 3.97E+02±0.3±3.9 3.39E+02±0.3±3.8

13–14 2.65E+02±0.4±4.7 2.56E+02±0.4±4.1 2.54E+02±0.4±3.9 2.18E+02±0.4±3.8

14–15 1.78E+02±0.4±4.5 1.71E+02±0.4±4.0 1.67E+02±0.4±3.9 1.46E+02±0.4±3.9

15–16 1.21E+02±0.5±4.4 1.18E+02±0.5±3.9 1.14E+02±0.5±3.9 1.03E+02±0.5±3.3

16–17 8.25E+01±0.6±4.4 8.19E+01±0.6±3.8 7.97E+01±0.6±3.9 7.00E+01±0.6±3.3

17–18 6.05E+01±0.6±4.3 5.89E+01±0.6±3.8 5.76E+01±0.6±3.8 5.00E+01±0.7±3.3

18–19 4.42E+01±0.7±4.3 4.30E+01±0.7±3.8 4.18E+01±0.7±3.8 3.64E+01±0.7±3.3

19–20 3.25E+01±0.8±4.3 3.22E+01±0.8±3.8 3.11E+01±0.8±3.8 2.67E+01±0.9±3.3

20–21 2.42E+01±0.9±4.3 2.46E+01±0.9±3.8 2.31E+01±0.9±3.8 2.03E+01±1.0±3.3

21–22 1.92E+01±1.0±4.3 1.81E+01±1.0±3.8 1.80E+01±1.0±3.8 1.54E+01±1.1±3.3

22–23 1.46E+01±1.2±4.3 1.40E+01±1.1±3.7 1.35E+01±1.2±3.8 1.20E+01±1.2±3.4

23–24 1.12E+01±1.3±4.3 1.10E+01±1.3±3.7 1.07E+01±1.3±3.8 9.36E+00±1.4±3.4

24–25 8.92E+00±1.4±4.4 8.75E+00±1.4±3.7 8.39E+00±1.4±3.8 7.46E+00±1.5±3.4

25–26 7.43E+00±1.6±4.4 6.81E+00±1.6±3.7 6.86E+00±1.6±3.8 5.96E+00±1.7±3.4

26–27 5.66E+00±1.8±4.4 5.45E+00±1.7±3.7 5.35E+00±1.8±3.8 4.96E+00±1.8±3.4

27–28 4.72E+00±1.9±4.4 4.54E+00±1.9±3.7 4.26E+00±2.0±3.8 3.74E+00±2.1±3.4

28–29 3.83E+00±2.1±4.4 3.70E+00±2.1±3.7 3.65E+00±2.1±3.8 3.08E+00±2.3±3.5

29–30 3.04E+00±2.3±4.4 2.99E+00±2.3±3.7 2.91E+00±2.4±3.8 2.50E+00±2.5±3.5

30–32 2.35E+00±1.9±4.4 2.35E+00±1.8±3.7 2.22E+00±1.9±3.9 1.90E+00±2.1±3.5

32–34 1.69E+00±2.2±4.5 1.61E+00±2.2±3.7 1.53E+00±2.3±3.9 1.34E+00±2.4±3.5

34–36 1.17E+00±2.6±4.5 1.19E+00±2.5±3.7 1.13E+00±2.6±3.9 9.62E-01±2.9±3.6

36–38 8.70E-01±3.0±6.5 8.80E-01±2.9±5.9 8.32E-01±3.0±6.1 7.03E-01±3.4±5.8

38–42 5.67E-01±2.6±6.5 5.51E-01±2.6±5.9 5.39E-01±2.6±6.1 4.70E-01±2.9±5.9

42–46 3.34E-01±3.4±6.5 2.99E-01±3.5±5.9 3.13E-01±3.4±6.1 2.63E-01±3.7±5.9

46–50 2.13E-01±4.4±6.5 1.87E-01±4.5±5.9 1.80E-01±6.5±6.1 1.64E-01±4.9±5.9

50–60 1.00E-01±4.1±11 9.48E-02±4.1±11 8.37E-02±4.3±11 7.03E-02±4.9±11

60–75 3.06E-02±6.4±11 2.97E-02±6.1±11 2.72E-02±6.5±11 2.39E-02±7.3±11

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11

Table A.2: The ψ(2S)differential cross section times dimuon branching fraction Bdσ/dpT in

four rapidity ranges for the unpolarized scenario. The relative uncertainties (first statistical and then systematic) are given in percent. The systematic uncertainties are to be treated as bin-to-bin correlated.

∆pT Bdσ/dpT[pb/GeV]

[GeV] |y| <0.3 0.3< |y| <0.6 0.6< |y| <0.9 0.9 < |y| <1.2

10–11 4.07E+01±1.7±7.5 3.80E+01±1.7±6.2 3.82E+01±1.6±4.4 3.35E+01±1.5±4.5

11–12 2.54E+01±1.6±5.8 2.48E+01±1.7±5.0 2.42E+01±1.7±4.1 2.13E+01±1.6±3.9

12–13 1.62E+01±1.8±5.1 1.51E+01±1.9±4.6 1.58E+01±1.8±4.1 1.40E+01±1.8±3.8

13–14 1.04E+01±2.0±4.8 1.07E+01±2.0±4.4 1.07E+01±2.0±4.0 8.88E+00±2.1±3.7

14–15 7.77E+00±2.2±4.7 7.51E+00±2.2±4.3 6.98E+00±2.3±4.0 6.31E+00±2.4±3.6

15–16 5.08E+00±2.6±4.8 4.97E+00±2.5±4.4 4.96E+00±2.6±4.3 4.13E+00±2.9±3.9

16–17 3.79E+00±2.8±4.6 3.57E+00±2.9±4.3 3.42E+00±3.1±4.1 3.10E+00±3.2±3.7

17–18 2.69E+00±3.2±4.7 2.63E+00±3.3±4.3 2.58E+00±3.4±4.3 2.16E+00±3.8±3.9

18–19 1.94E+00±3.7±4.6 1.87E+00±3.8±4.2 1.96E+00±3.7±4.1 1.70E+00±4.1±3.7

19–20 1.43E+00±4.3±4.7 1.30E+00±4.5±4.3 1.42E+00±4.3±4.2 1.23E+00±4.8±3.9

20–22.5 9.07E-01±3.2±5.1 8.83E-01±3.3±4.7 8.96E-01±3.3±4.7 7.44E-01±3.9±4.3

22.5–25 4.69E-01±4.4±5.2 5.05E-01±4.2±4.7 4.57E-01±4.5±4.7 4.08E-01±5.0±4.4

25–27.5 2.81E-01±5.6±5.8 2.90E-01±5.4±5.4 2.75E-01±5.8±5.4 2.31E-01±6.8±5.1

27.5–30 1.65E-01±7.2±5.7 1.66E-01±7.2±5.3 1.81E-01±7.1±5.3 1.44E-01±8.5±5.1

30–35 8.83E-02±6.8±6.0 8.70E-02±7.2±5.5 8.40E-02±7.3±5.6 7.78E-02±8.0±5.4

35–40 3.67E-02±10±7.8 2.95E-02±13±7.4 3.74E-02±11±7.5 3.50E-02±12±7.2

40–55 9.96E-03±13±8.2 9.64E-03±13±7.9 1.03E-02±13±8.0 1.08E-02±14±7.8

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Table A.3: The J/ψ differential cross section times dimuon branching fraction Bdσ/dpT for

the integrated rapidity range|y| <1.2, in the unpolarized scenario. The relative uncertainties

(first statistical and then systematic) are given in percent. The systematic uncertainties are to

be treated as bin-to-bin correlated. The average pTvalues,hpTi, are calculated after acceptance

and efficiency corrections. Detector smearing has a negligible effect on this value. The last three columns list the scaling factors needed to obtain the cross sections corresponding to the

polarization scenarios represented by the indicated λHX

ϑ values.

∆pT hpTi Bdσ/dpT λHX_ϑ scaling factors

[GeV] [GeV] [pb/GeV] +1 −1 0.10

10–11 10.5 1.01E+03±0.1±7.9 1.31 0.68 1.03 11–12 11.5 6.09E+02±0.1±5.9 1.30 0.68 1.03 12–13 12.5 3.82E+02±0.2±5.0 1.29 0.69 1.03 13–14 13.5 2.47E+02±0.2±4.7 1.28 0.70 1.03 14–15 14.5 1.65E+02±0.2±4.5 1.26 0.71 1.03 15–16 15.5 1.14E+02±0.2±4.4 1.25 0.71 1.03 16–17 16.5 7.84E+01±0.3±4.4 1.24 0.72 1.03 17–18 17.5 5.66E+01±0.3±4.3 1.23 0.73 1.02 18–19 18.5 4.13E+01±0.4±4.3 1.22 0.73 1.02 19–20 19.5 3.05E+01±0.4±4.3 1.21 0.74 1.02 20–21 20.5 2.30E+01±0.5±4.3 1.20 0.75 1.02 21–22 21.5 1.76E+01±0.5±4.3 1.19 0.75 1.02 22–23 22.5 1.35E+01±0.6±4.3 1.19 0.76 1.02 23–24 23.5 1.05E+01±0.6±4.3 1.18 0.77 1.02 24–25 24.5 8.35E+00±0.7±4.4 1.17 0.77 1.02 25–26 25.5 6.75E+00±0.8±4.4 1.17 0.78 1.02 26–27 26.5 5.35E+00±0.9±4.4 1.16 0.78 1.02 27–28 27.5 4.31E+00±1.0±4.4 1.16 0.79 1.02 28–29 28.5 3.57E+00±1.1±4.4 1.15 0.79 1.02 29–30 29.5 2.86E+00±1.2±4.4 1.15 0.80 1.02 30–32 30.9 2.21E+00±0.9±4.4 1.14 0.80 1.02 32–34 32.9 1.55E+00±1.1±4.5 1.13 0.81 1.02 34–36 35.0 1.11E+00±1.3±4.5 1.12 0.82 1.01 36–38 37.0 8.22E-01±1.5±6.5 1.12 0.83 1.01 38–42 39.8 5.33E-01±1.3±6.5 1.11 0.83 1.01 42–46 43.8 3.02E-01±1.8±6.5 1.10 0.85 1.01 46–50 47.9 1.86E-01±2.3±6.5 1.09 0.86 1.01 50–60 54.2 8.75E-02±2.1±10.9 1.08 0.87 1.01 60–75 66.0 2.78E-02±3.2±11.1 1.07 0.89 1.01 75–95 82.9 7.97E-03±5.4±11.2 1.05 0.91 1.01 95–120 104.1 1.96E-03±10.7±11.4 1.04 0.92 1.01

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13

Table A.4: The ψ(2S)differential cross section times dimuon branching fractionBdσ/dpTfor

the integrated rapidity range|y| <1.2, in the unpolarized scenario. The relative uncertainties

(first statistical and then systematic) are given in percent. The systematic uncertainties are to

be treated as bin-to-bin correlated. The average pTvalues,hpTi, are calculated after acceptance

and efficiency corrections. Detector smearing has a negligible effect on this value. The last three columns list the scaling factors needed to obtain the cross sections corresponding to the

polarization scenarios represented by the indicated λHX_ϑ values.

∆pT hpTi Bdσ/dpT λHX_ϑ scaling factors

[GeV] [GeV] [pb/GeV] +1 −1 0.03

10–11 10.5 3.80E+01±0.8±7.5 1.31 0.68 1.01 11–12 11.5 2.41E+01±0.8±5.8 1.30 0.69 1.01 12–13 12.5 1.54E+01±0.9±5.1 1.28 0.69 1.01 13–14 13.5 1.02E+01±1.0±4.8 1.27 0.70 1.01 14–15 14.5 7.15E+00±1.1±4.7 1.26 0.71 1.01 15–16 15.5 4.79E+00±1.3±4.8 1.25 0.72 1.01 16–17 16.5 3.48E+00±1.5±4.6 1.24 0.72 1.01 17–18 17.5 2.52E+00±1.7±4.7 1.23 0.73 1.01 18–19 18.5 1.87E+00±1.9±4.6 1.22 0.74 1.01 19–20 19.5 1.34E+00±2.2±4.7 1.21 0.74 1.01 20–22.5 21.1 8.57E-01±1.7±5.1 1.20 0.75 1.01 22.5–25 23.6 4.61E-01±2.2±5.2 1.18 0.77 1.01 25–27.5 26.1 2.69E-01±2.9±5.8 1.16 0.78 1.01 27.5–30 28.7 1.65E-01±3.7±5.7 1.15 0.79 1.01 30–35 32.2 8.42E-02±3.6±6.0 1.13 0.81 1.00 35–40 37.2 3.47E-02±5.8±7.8 1.12 0.83 1.00 40–55 45.5 1.02E-02±6.6±8.2 1.10 0.85 1.00 55–75 62.4 2.35E-03±12.7±12.3 1.07 0.88 1.00 75–100 84.1 5.62E-04±24.4±12.6 1.05 0.91 1.00

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Table A.5: The ratio of the ψ(2S) to J/ψ differential cross sections times dimuon branching

fractions in percent, as a function of pT, in the unpolarized scenario for |y| < 1.2. The first

uncertainty is statistical and the second is systematic. The systematic uncertainties are to be treated as bin-to-bin correlated.

∆pT hpTi [Bσ(ψ(2S))]/[Bσ(J/ψ)] [GeV] [GeV] [%] 10–11 10.5 3.75±0.03±0.11 11–12 11.5 3.93±0.03±0.11 12–13 12.5 4.04±0.04±0.11 13–14 13.5 4.11±0.04±0.11 14–15 14.5 4.30±0.05±0.12 15–16 15.5 4.20±0.06±0.11 16–17 16.5 4.39±0.07±0.12 17–18 17.5 4.42±0.08±0.12 18–19 18.5 4.45±0.09±0.12 19–20 19.5 4.37±0.10±0.11 20–22.5 21.1 4.49±0.08±0.05 22.5–25 23.6 4.58±0.10±0.05 25–27.5 26.1 4.69±0.14±0.04 27.5–30 28.7 4.85±0.18±0.05 30–35 32.2 4.84±0.18±0.05 35–40 37.2 4.47±0.26±0.05 40–55 45.5 4.47±0.30±0.04 55–75 62.3 6.08±0.80±0.12 75–100 82.9 7.64±1.98±0.41

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15

B

The CMS Collaboration

Yerevan Physics Institute, Yerevan, Armenia

V. Khachatryan, A.M. Sirunyan, A. Tumasyan

Institut f ¨ur Hochenergiephysik der OeAW, Wien, Austria

W. Adam, T. Bergauer, M. Dragicevic, J. Er ¨o, M. Friedl, R. Fr ¨uhwirth1, V.M. Ghete, C. Hartl,

N. H örmann, J. Hrubec, M. Jeitler1, W. Kiesenhofer, V. Kn ünz, M. Krammer1, I. Krätschmer,

D. Liko, I. Mikulec, D. Rabady2_{, B. Rahbaran, H. Rohringer, R. Sch ¨ofbeck, J. Strauss,}

W. Treberer-Treberspurg, W. Waltenberger, C.-E. Wulz1

National Centre for Particle and High Energy Physics, Minsk, Belarus

V. Mossolov, N. Shumeiko, J. Suarez Gonzalez

Universiteit Antwerpen, Antwerpen, Belgium

S. Alderweireldt, S. Bansal, T. Cornelis, E.A. De Wolf, X. Janssen, A. Knutsson, J. Lauwers, S. Luyckx, S. Ochesanu, R. Rougny, M. Van De Klundert, H. Van Haevermaet, P. Van Mechelen, N. Van Remortel, A. Van Spilbeeck

Vrije Universiteit Brussel, Brussel, Belgium

F. Blekman, S. Blyweert, J. D’Hondt, N. Daci, N. Heracleous, J. Keaveney, S. Lowette, M. Maes, A. Olbrechts, Q. Python, D. Strom, S. Tavernier, W. Van Doninck, P. Van Mulders, G.P. Van Onsem, I. Villella

Universit´e Libre de Bruxelles, Bruxelles, Belgium

C. Caillol, B. Clerbaux, G. De Lentdecker, D. Dobur, L. Favart, A.P.R. Gay, A. Grebenyuk,

A. L´eonard, A. Mohammadi, L. Perni`e2, A. Randle-conde, T. Reis, T. Seva, L. Thomas, C. Vander

Velde, P. Vanlaer, J. Wang, F. Zenoni

Ghent University, Ghent, Belgium

V. Adler, K. Beernaert, L. Benucci, A. Cimmino, S. Costantini, S. Crucy, A. Fagot, G. Garcia, J. Mccartin, A.A. Ocampo Rios, D. Poyraz, D. Ryckbosch, S. Salva Diblen, M. Sigamani, N. Strobbe, F. Thyssen, M. Tytgat, E. Yazgan, N. Zaganidis

Universit´e Catholique de Louvain, Louvain-la-Neuve, Belgium

S. Basegmez, C. Beluffi3, G. Bruno, R. Castello, A. Caudron, L. Ceard, G.G. Da Silveira,

C. Delaere, T. du Pree, D. Favart, L. Forthomme, A. Giammanco4, J. Hollar, A. Jafari, P. Jez,

M. Komm, V. Lemaitre, C. Nuttens, D. Pagano, L. Perrini, A. Pin, K. Piotrzkowski, A. Popov5,

L. Quertenmont, M. Selvaggi, M. Vidal Marono, J.M. Vizan Garcia

Universit´e de Mons, Mons, Belgium

N. Beliy, T. Caebergs, E. Daubie, G.H. Hammad

Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil

W.L. Ald´a J ´unior, G.A. Alves, L. Brito, M. Correa Martins Junior, T. Dos Reis Martins, J. Molina, C. Mora Herrera, M.E. Pol, P. Rebello Teles

Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil

W. Carvalho, J. Chinellato6, A. Cust ´odio, E.M. Da Costa, D. De Jesus Damiao, C. De Oliveira

Martins, S. Fonseca De Souza, H. Malbouisson, D. Matos Figueiredo, L. Mundim, H. Nogima,

W.L. Prado Da Silva, J. Santaolalla, A. Santoro, A. Sznajder, E.J. Tonelli Manganote6, A. Vilela

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16 B The CMS Collaboration

Universidade Estadual Paulistaa, Universidade Federal do ABCb, S˜ao Paulo, Brazil

C.A. Bernardesb, S. Dograa, T.R. Fernandez Perez Tomeia, E.M. Gregoresb, P.G. Mercadanteb,

S.F. Novaesa, Sandra S. Padulaa

Institute for Nuclear Research and Nuclear Energy, Sofia, Bulgaria

A. Aleksandrov, V. Genchev2, R. Hadjiiska, P. Iaydjiev, A. Marinov, S. Piperov, M. Rodozov,

S. Stoykova, G. Sultanov, M. Vutova

University of Sofia, Sofia, Bulgaria

A. Dimitrov, I. Glushkov, L. Litov, B. Pavlov, P. Petkov

Institute of High Energy Physics, Beijing, China

J.G. Bian, G.M. Chen, H.S. Chen, M. Chen, T. Cheng, R. Du, C.H. Jiang, R. Plestina7, F. Romeo,

J. Tao, Z. Wang

State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China

C. Asawatangtrakuldee, Y. Ban, W. Guo, S. Liu, Y. Mao, S.J. Qian, D. Wang, Z. Xu, F. Zhang8,

L. Zhang, W. Zou

Universidad de Los Andes, Bogota, Colombia

C. Avila, A. Cabrera, L.F. Chaparro Sierra, C. Florez, J.P. Gomez, B. Gomez Moreno, J.C. Sanabria

University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, Split, Croatia

N. Godinovic, D. Lelas, D. Polic, I. Puljak

University of Split, Faculty of Science, Split, Croatia

Z. Antunovic, M. Kovac

Institute Rudjer Boskovic, Zagreb, Croatia

V. Brigljevic, K. Kadija, J. Luetic, D. Mekterovic, L. Sudic

University of Cyprus, Nicosia, Cyprus

A. Attikis, G. Mavromanolakis, J. Mousa, C. Nicolaou, F. Ptochos, P.A. Razis, H. Rykaczewski

Charles University, Prague, Czech Republic

M. Bodlak, M. Finger, M. Finger Jr.9

Academy of Scientific Research and Technology of the Arab Republic of Egypt, Egyptian Network of High Energy Physics, Cairo, Egypt

Y. Assran10_{, A. Ellithi Kamel}11_{, M.A. Mahmoud}12_{, A. Radi}13,14

National Institute of Chemical Physics and Biophysics, Tallinn, Estonia

M. Kadastik, M. Murumaa, M. Raidal, A. Tiko

Department of Physics, University of Helsinki, Helsinki, Finland

P. Eerola, M. Voutilainen

Helsinki Institute of Physics, Helsinki, Finland

J. Härk önen, V. Karimäki, R. Kinnunen, M.J. Kortelainen, T. Lampén, K. Lassila-Perini, S. Lehti, T. Lindén, P. Luukka, T. Mäenpää, T. Peltola, E. Tuominen, J. Tuominiemi, E. Tuovinen, L. Wendland

Lappeenranta University of Technology, Lappeenranta, Finland

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17

DSM/IRFU, CEA/Saclay, Gif-sur-Yvette, France

M. Besancon, F. Couderc, M. Dejardin, D. Denegri, B. Fabbro, J.L. Faure, C. Favaro, F. Ferri, S. Ganjour, A. Givernaud, P. Gras, G. Hamel de Monchenault, P. Jarry, E. Locci, J. Malcles, J. Rander, A. Rosowsky, M. Titov

Laboratoire Leprince-Ringuet, Ecole Polytechnique, IN2P3-CNRS, Palaiseau, France

S. Baffioni, F. Beaudette, P. Busson, E. Chapon, C. Charlot, T. Dahms, L. Dobrzynski, N. Filipovic, A. Florent, R. Granier de Cassagnac, L. Mastrolorenzo, P. Min´e, I.N. Naranjo, M. Nguyen, C. Ochando, G. Ortona, P. Paganini, S. Regnard, R. Salerno, J.B. Sauvan, Y. Sirois, C. Veelken, Y. Yilmaz, A. Zabi

Institut Pluridisciplinaire Hubert Curien, Universit´e de Strasbourg, Universit´e de Haute Alsace Mulhouse, CNRS/IN2P3, Strasbourg, France

J.-L. Agram15, J. Andrea, A. Aubin, D. Bloch, J.-M. Brom, E.C. Chabert, C. Collard, E. Conte15,

J.-C. Fontaine15, D. Gel´e, U. Goerlach, C. Goetzmann, A.-C. Le Bihan, K. Skovpen, P. Van Hove

Centre de Calcul de l’Institut National de Physique Nucleaire et de Physique des Particules, CNRS/IN2P3, Villeurbanne, France

S. Gadrat

Université de Lyon, Université Claude Bernard Lyon 1, CNRS-IN2P3, Institut de Physique Nucléaire de Lyon, Villeurbanne, France

S. Beauceron, N. Beaupere, C. Bernet7, G. Boudoul2, E. Bouvier, S. Brochet, C.A. Carrillo

Montoya, J. Chasserat, R. Chierici, D. Contardo2, B. Courbon, P. Depasse, H. El Mamouni,

J. Fan, J. Fay, S. Gascon, M. Gouzevitch, B. Ille, T. Kurca, M. Lethuillier, L. Mirabito, A.L. Pequegnot, S. Perries, J.D. Ruiz Alvarez, D. Sabes, L. Sgandurra, V. Sordini, M. Vander Donckt, P. Verdier, S. Viret, H. Xiao

Institute of High Energy Physics and Informatization, Tbilisi State University, Tbilisi, Georgia

Z. Tsamalaidze9

RWTH Aachen University, I. Physikalisches Institut, Aachen, Germany

C. Autermann, S. Beranek, M. Bontenackels, M. Edelhoff, L. Feld, A. Heister, K. Klein, M. Lipinski, A. Ostapchuk, M. Preuten, F. Raupach, J. Sammet, S. Schael, J.F. Schulte, H. Weber,

B. Wittmer, V. Zhukov5

RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany

M. Ata, M. Brodski, E. Dietz-Laursonn, D. Duchardt, M. Erdmann, R. Fischer, A. G ¨uth, T. Hebbeker, C. Heidemann, K. Hoepfner, D. Klingebiel, S. Knutzen, P. Kreuzer, M. Merschmeyer, A. Meyer, P. Millet, M. Olschewski, K. Padeken, P. Papacz, H. Reithler, S.A. Schmitz, L. Sonnenschein, D. Teyssier, S. Th ¨uer

RWTH Aachen University, III. Physikalisches Institut B, Aachen, Germany

V. Cherepanov, Y. Erdogan, G. Fl ¨ugge, H. Geenen, M. Geisler, W. Haj Ahmad, F. Hoehle,

B. Kargoll, T. Kress, Y. Kuessel, A. K ¨unsken, J. Lingemann2, A. Nowack, I.M. Nugent,

C. Pistone, O. Pooth, A. Stahl

Deutsches Elektronen-Synchrotron, Hamburg, Germany

M. Aldaya Martin, I. Asin, N. Bartosik, J. Behr, U. Behrens, A.J. Bell, A. Bethani, K. Borras, A. Burgmeier, A. Cakir, L. Calligaris, A. Campbell, S. Choudhury, F. Costanza, C. Diez Pardos, G. Dolinska, S. Dooling, T. Dorland, G. Eckerlin, D. Eckstein, T. Eichhorn, G. Flucke,

J. Garay Garcia, A. Geiser, A. Gizhko, P. Gunnellini, J. Hauk, M. Hempel16, H. Jung,

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D. Kr ¨ucker, W. Lange, J. Leonard, K. Lipka, A. Lobanov, W. Lohmann16, B. Lutz, R. Mankel,

I. Marfin16, I.-A. Melzer-Pellmann, A.B. Meyer, G. Mittag, J. Mnich, A. Mussgiller, S.

Naumann-Emme, A. Nayak, E. Ntomari, H. Perrey, D. Pitzl, R. Placakyte, A. Raspereza, P.M. Ribeiro

Cipriano, B. Roland, E. Ron, M. ¨O. Sahin, J. Salfeld-Nebgen, P. Saxena, T. Schoerner-Sadenius,

M. Schr ¨oder, C. Seitz, S. Spannagel, A.D.R. Vargas Trevino, R. Walsh, C. Wissing

University of Hamburg, Hamburg, Germany

V. Blobel, M. Centis Vignali, A.R. Draeger, J. Erfle, E. Garutti, K. Goebel, M. G örner, J. Haller, M. Hoffmann, R.S. H öing, A. Junkes, H. Kirschenmann, R. Klanner, R. Kogler, T. Lapsien, T. Lenz, I. Marchesini, D. Marconi, J. Ott, T. Peiffer, A. Perieanu, N. Pietsch, J. Poehlsen, T. Poehlsen, D. Rathjens, C. Sander, H. Schettler, P. Schleper, E. Schlieckau, A. Schmidt, M. Seidel, V. Sola, H. Stadie, G. Steinbr ück, D. Troendle, E. Usai, L. Vanelderen, A. Vanhoefer

Institut f ¨ur Experimentelle Kernphysik, Karlsruhe, Germany

C. Barth, C. Baus, J. Berger, C. B ¨oser, E. Butz, T. Chwalek, W. De Boer, A. Descroix, A. Dierlamm,

M. Feindt, F. Frensch, M. Giffels, A. Gilbert, F. Hartmann2, T. Hauth, U. Husemann, I. Katkov5,

A. Kornmayer2, P. Lobelle Pardo, M.U. Mozer, T. M üller, Th. M üller, A. N ürnberg, G. Quast,

K. Rabbertz, S. R ¨ocker, H.J. Simonis, F.M. Stober, R. Ulrich, J. Wagner-Kuhr, S. Wayand, T. Weiler, R. Wolf

Institute of Nuclear and Particle Physics (INPP), NCSR Demokritos, Aghia Paraskevi, Greece

G. Anagnostou, G. Daskalakis, T. Geralis, V.A. Giakoumopoulou, A. Kyriakis, D. Loukas, A. Markou, C. Markou, A. Psallidas, I. Topsis-Giotis

University of Athens, Athens, Greece

A. Agapitos, S. Kesisoglou, A. Panagiotou, N. Saoulidou, E. Stiliaris, E. Tziaferi

University of Io´annina, Io´annina, Greece

X. Aslanoglou, I. Evangelou, G. Flouris, C. Foudas, P. Kokkas, N. Manthos, I. Papadopoulos, E. Paradas, J. Strologas

Wigner Research Centre for Physics, Budapest, Hungary

G. Bencze, C. Hajdu, P. Hidas, D. Horvath17, F. Sikler, V. Veszpremi, G. Vesztergombi18,

A.J. Zsigmond

Institute of Nuclear Research ATOMKI, Debrecen, Hungary

N. Beni, S. Czellar, J. Karancsi19, J. Molnar, J. Palinkas, Z. Szillasi

University of Debrecen, Debrecen, Hungary

A. Makovec, P. Raics, Z.L. Trocsanyi, B. Ujvari

National Institute of Science Education and Research, Bhubaneswar, India

S.K. Swain

Panjab University, Chandigarh, India

S.B. Beri, V. Bhatnagar, R. Gupta, U.Bhawandeep, A.K. Kalsi, M. Kaur, R. Kumar, M. Mittal, N. Nishu, J.B. Singh

University of Delhi, Delhi, India

Ashok Kumar, Arun Kumar, S. Ahuja, A. Bhardwaj, B.C. Choudhary, A. Kumar, S. Malhotra, M. Naimuddin, K. Ranjan, V. Sharma

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19

Saha Institute of Nuclear Physics, Kolkata, India

S. Banerjee, S. Bhattacharya, K. Chatterjee, S. Dutta, B. Gomber, Sa. Jain, Sh. Jain, R. Khurana, A. Modak, S. Mukherjee, D. Roy, S. Sarkar, M. Sharan

Bhabha Atomic Research Centre, Mumbai, India

A. Abdulsalam, D. Dutta, V. Kumar, A.K. Mohanty2, L.M. Pant, P. Shukla, A. Topkar

Tata Institute of Fundamental Research, Mumbai, India

T. Aziz, S. Banerjee, S. Bhowmik20, R.M. Chatterjee, R.K. Dewanjee, S. Dugad, S. Ganguly,

S. Ghosh, M. Guchait, A. Gurtu21, G. Kole, S. Kumar, M. Maity20, G. Majumder, K. Mazumdar,

G.B. Mohanty, B. Parida, K. Sudhakar, N. Wickramage22

Indian Institute of Science Education and Research (IISER), Pune, India

S. Sharma

Institute for Research in Fundamental Sciences (IPM), Tehran, Iran

H. Bakhshiansohi, H. Behnamian, S.M. Etesami23, A. Fahim24, R. Goldouzian, M. Khakzad,

M. Mohammadi Najafabadi, M. Naseri, S. Paktinat Mehdiabadi, F. Rezaei Hosseinabadi,

B. Safarzadeh25_{, M. Zeinali}

University College Dublin, Dublin, Ireland

M. Felcini, M. Grunewald

INFN Sezione di Baria, Universit`a di Barib, Politecnico di Baric, Bari, Italy

M. Abbresciaa,b, C. Calabriaa,b, S.S. Chhibraa,b, A. Colaleoa, D. Creanzaa,c, L. Cristellaa,b, N. De

Filippisa,c, M. De Palmaa,b, L. Fiorea, G. Iasellia,c, G. Maggia,c, M. Maggia, S. Mya,c, S. Nuzzoa,b,

A. Pompilia,b_{, G. Pugliese}a,c_{, R. Radogna}a,b,2_{, G. Selvaggi}a,b_{, A. Sharma}a_{, L. Silvestris}a,2_,

R. Vendittia,b, P. Verwilligena

INFN Sezione di Bolognaa, Universit`a di Bolognab, Bologna, Italy

G. Abbiendia, A.C. Benvenutia, D. Bonacorsia,b, S. Braibant-Giacomellia,b, L. Brigliadoria,b,

R. Campaninia,b, P. Capiluppia,b, A. Castroa,b, F.R. Cavalloa, G. Codispotia,b, M. Cuffiania,b,

G.M. Dallavallea, F. Fabbria, A. Fanfania,b, D. Fasanellaa,b, P. Giacomellia, C. Grandia,

L. Guiduccia,b, S. Marcellinia, G. Masettia, A. Montanaria, F.L. Navarriaa,b, A. Perrottaa,

A.M. Rossia,b_{, T. Rovelli}a,b_{, G.P. Siroli}a,b_{, N. Tosi}a,b_{, R. Travaglini}a,b

INFN Sezione di Cataniaa, Universit`a di Cataniab, CSFNSMc, Catania, Italy

S. Albergoa,b, G. Cappelloa, M. Chiorbolia,b, S. Costaa,b, F. Giordanoa,2, R. Potenzaa,b,

A. Tricomia,b, C. Tuvea,b

INFN Sezione di Firenzea, Universit`a di Firenzeb, Firenze, Italy

G. Barbaglia, V. Ciullia,b, C. Civininia, R. D’Alessandroa,b, E. Focardia,b, E. Galloa, S. Gonzia,b,

V. Goria,b_{, P. Lenzi}a,b_{, M. Meschini}a_{, S. Paoletti}a_{, G. Sguazzoni}a_{, A. Tropiano}a,b

INFN Laboratori Nazionali di Frascati, Frascati, Italy

L. Benussi, S. Bianco, F. Fabbri, D. Piccolo

INFN Sezione di Genovaa, Universit`a di Genovab, Genova, Italy

R. Ferrettia,b, F. Ferroa, M. Lo Veterea,b, E. Robuttia, S. Tosia,b

INFN Sezione di Milano-Bicoccaa, Universit`a di Milano-Bicoccab, Milano, Italy

M.E. Dinardoa,b, S. Fiorendia,b, S. Gennaia,2, R. Gerosaa,b,2, A. Ghezzia,b, P. Govonia,b,

M.T. Lucchinia,b,2, S. Malvezzia, R.A. Manzonia,b, A. Martellia,b, B. Marzocchia,b,2, D. Menascea,

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INFN Sezione di Napoli a, Università di Napoli ’Federico II’ b, Università della Basilicata (Potenza)c, Università G. Marconi (Roma)d, Napoli, Italy

S. Buontempoa, N. Cavalloa,c, S. Di Guidaa,d,2, F. Fabozzia,c, A.O.M. Iorioa,b, L. Listaa,

S. Meolaa,d,2_{, M. Merola}a_{, P. Paolucci}a,2

INFN Sezione di Padovaa, Universit`a di Padovab, Universit`a di Trento (Trento)c, Padova, Italy

P. Azzia, N. Bacchettaa, D. Biselloa,b, R. Carlina,b, P. Checchiaa, M. Dall’Ossoa,b, T. Dorigoa,

U. Dossellia, F. Gasparinia,b, U. Gasparinia,b, A. Gozzelinoa, S. Lacapraraa, M. Margonia,b,

A.T. Meneguzzoa,b, F. Montecassianoa, M. Passaseoa, J. Pazzinia,b, N. Pozzobona,b,

P. Ronchesea,b, F. Simonettoa,b, E. Torassaa, M. Tosia,b, P. Zottoa,b, A. Zucchettaa,b, G. Zumerlea,b

INFN Sezione di Paviaa, Universit`a di Paviab, Pavia, Italy

M. Gabusia,b, S.P. Rattia,b, V. Rea, C. Riccardia,b, P. Salvinia, P. Vituloa,b

INFN Sezione di Perugiaa, Universit`a di Perugiab, Perugia, Italy

M. Biasinia,b, G.M. Bileia, D. Ciangottinia,b,2, L. Fan `oa,b, P. Laricciaa,b, G. Mantovania,b,

M. Menichellia, A. Sahaa, A. Santocchiaa,b, A. Spieziaa,b,2

INFN Sezione di Pisaa, Universit`a di Pisab, Scuola Normale Superiore di Pisac, Pisa, Italy

K. Androsova,26, P. Azzurria, G. Bagliesia, J. Bernardinia, T. Boccalia, G. Broccoloa,c, R. Castaldia,

M.A. Cioccia,26, R. Dell’Orsoa, S. Donatoa,c,2, G. Fedi, F. Fioria,c, L. Fo`aa,c, A. Giassia,

M.T. Grippoa,26, F. Ligabuea,c, T. Lomtadzea, L. Martinia,b, A. Messineoa,b, C.S. Moona,27,

F. Pallaa,2, A. Rizzia,b, A. Savoy-Navarroa,28, A.T. Serbana, P. Spagnoloa, P. Squillaciotia,26,

R. Tenchinia, G. Tonellia,b, A. Venturia, P.G. Verdinia, C. Vernieria,c

INFN Sezione di Romaa_{, Universit`a di Roma}b_{, Roma, Italy}

L. Baronea,b_{, F. Cavallari}a_{, G. D’imperio}a,b_{, D. Del Re}a,b_{, M. Diemoz}a_{, C. Jorda}a_{, E. Longo}a,b_,

F. Margarolia,b, P. Meridiania, F. Michelia,b,2, G. Organtinia,b, R. Paramattia, S. Rahatloua,b,

C. Rovellia, F. Santanastasioa,b, L. Soffia,b, P. Traczyka,b,2

INFN Sezione di Torino a, Universit`a di Torino b, Universit`a del Piemonte Orientale (No-vara)c, Torino, Italy

N. Amapanea,b, R. Arcidiaconoa,c, S. Argiroa,b, M. Arneodoa,c, R. Bellana,b, C. Biinoa,

N. Cartigliaa_{, S. Casasso}a,b,2_{, M. Costa}a,b_{, R. Covarelli, A. Degano}a,b_{, N. Demaria}a_{, L. Finco}a,b,2_,

C. Mariottia, S. Masellia, E. Migliorea,b, V. Monacoa,b, M. Musicha, M.M. Obertinoa,c,

L. Pachera,b, N. Pastronea, M. Pelliccionia, G.L. Pinna Angionia,b, A. Potenzaa,b, A. Romeroa,b,

M. Ruspaa,c, R. Sacchia,b, A. Solanoa,b, A. Staianoa, U. Tamponia

INFN Sezione di Triestea, Universit`a di Triesteb, Trieste, Italy

S. Belfortea, V. Candelisea,b,2, M. Casarsaa, F. Cossuttia, G. Della Riccaa,b, B. Gobboa, C. La

Licataa,b, M. Maronea,b, A. Schizzia,b, T. Umera,b, A. Zanettia

Kangwon National University, Chunchon, Korea

S. Chang, A. Kropivnitskaya, S.K. Nam

Kyungpook National University, Daegu, Korea

D.H. Kim, G.N. Kim, M.S. Kim, D.J. Kong, S. Lee, Y.D. Oh, H. Park, A. Sakharov, D.C. Son

Chonbuk National University, Jeonju, Korea

T.J. Kim, M.S. Ryu

Chonnam National University, Institute for Universe and Elementary Particles, Kwangju, Korea

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21

Korea University, Seoul, Korea

S. Choi, D. Gyun, B. Hong, M. Jo, H. Kim, Y. Kim, B. Lee, K.S. Lee, S.K. Park, Y. Roh

Seoul National University, Seoul, Korea

H.D. Yoo

University of Seoul, Seoul, Korea

M. Choi, J.H. Kim, I.C. Park, G. Ryu

Sungkyunkwan University, Suwon, Korea

Y. Choi, Y.K. Choi, J. Goh, D. Kim, E. Kwon, J. Lee, I. Yu

Vilnius University, Vilnius, Lithuania

A. Juodagalvis

National Centre for Particle Physics, Universiti Malaya, Kuala Lumpur, Malaysia

J.R. Komaragiri, M.A.B. Md Ali29, W.A.T. Wan Abdullah

Centro de Investigacion y de Estudios Avanzados del IPN, Mexico City, Mexico

E. Casimiro Linares, H. Castilla-Valdez, E. De La Cruz-Burelo, I. Heredia-de La Cruz, A. Hernandez-Almada, R. Lopez-Fernandez, A. Sanchez-Hernandez

Universidad Iberoamericana, Mexico City, Mexico

S. Carrillo Moreno, F. Vazquez Valencia

Benemerita Universidad Autonoma de Puebla, Puebla, Mexico

I. Pedraza, H.A. Salazar Ibarguen

Universidad Aut ´onoma de San Luis Potos´ı, San Luis Potos´ı, Mexico

A. Morelos Pineda

University of Auckland, Auckland, New Zealand

D. Krofcheck

University of Canterbury, Christchurch, New Zealand

P.H. Butler, S. Reucroft

National Centre for Physics, Quaid-I-Azam University, Islamabad, Pakistan

A. Ahmad, M. Ahmad, Q. Hassan, H.R. Hoorani, W.A. Khan, T. Khurshid, M. Shoaib

National Centre for Nuclear Research, Swierk, Poland

H. Bialkowska, M. Bluj, B. Boimska, T. Frueboes, M. G ´orski, M. Kazana, K. Nawrocki, K. Romanowska-Rybinska, M. Szleper, P. Zalewski

Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland

G. Brona, K. Bunkowski, M. Cwiok, W. Dominik, K. Doroba, A. Kalinowski, M. Konecki, J. Krolikowski, M. Misiura, M. Olszewski

Laborat ´orio de Instrumenta¸c˜ao e F´ısica Experimental de Part´ıculas, Lisboa, Portugal

P. Bargassa, C. Beir˜ao Da Cruz E Silva, P. Faccioli, P.G. Ferreira Parracho, M. Gallinaro, L. Lloret Iglesias, F. Nguyen, J. Rodrigues Antunes, J. Seixas, D. Vadruccio, J. Varela, P. Vischia

Joint Institute for Nuclear Research, Dubna, Russia

S. Afanasiev, I. Golutvin, V. Karjavin, V. Konoplyanikov, V. Korenkov, G. Kozlov, A. Lanev,

A. Malakhov, V. Matveev30, V.V. Mitsyn, P. Moisenz, V. Palichik, V. Perelygin, S. Shmatov,

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Petersburg Nuclear Physics Institute, Gatchina (St. Petersburg), Russia

V. Golovtsov, Y. Ivanov, V. Kim31, E. Kuznetsova, P. Levchenko, V. Murzin, V. Oreshkin,

I. Smirnov, V. Sulimov, L. Uvarov, S. Vavilov, A. Vorobyev, An. Vorobyev

Institute for Nuclear Research, Moscow, Russia

Yu. Andreev, A. Dermenev, S. Gninenko, N. Golubev, M. Kirsanov, N. Krasnikov, A. Pashenkov, D. Tlisov, A. Toropin

Institute for Theoretical and Experimental Physics, Moscow, Russia

V. Epshteyn, V. Gavrilov, N. Lychkovskaya, V. Popov, I. Pozdnyakov, G. Safronov, S. Semenov, A. Spiridonov, V. Stolin, E. Vlasov, A. Zhokin

P.N. Lebedev Physical Institute, Moscow, Russia

V. Andreev, M. Azarkin32, I. Dremin32, M. Kirakosyan, A. Leonidov32, G. Mesyats, S.V. Rusakov,

A. Vinogradov

Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia

A. Belyaev, E. Boos, M. Dubinin33_{, L. Dudko, A. Ershov, A. Gribushin, V. Klyukhin,}

O. Kodolova, I. Lokhtin, S. Obraztsov, S. Petrushanko, V. Savrin, A. Snigirev

State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, Russia

I. Azhgirey, I. Bayshev, S. Bitioukov, V. Kachanov, A. Kalinin, D. Konstantinov, V. Krychkine, V. Petrov, R. Ryutin, A. Sobol, L. Tourtchanovitch, S. Troshin, N. Tyurin, A. Uzunian, A. Volkov

University of Belgrade, Faculty of Physics and Vinca Institute of Nuclear Sciences, Belgrade, Serbia

P. Adzic34, M. Ekmedzic, J. Milosevic, V. Rekovic

Centro de Investigaciones Energ´eticas Medioambientales y Tecnol ´ogicas (CIEMAT), Madrid, Spain

J. Alcaraz Maestre, C. Battilana, E. Calvo, M. Cerrada, M. Chamizo Llatas, N. Colino, B. De La Cruz, A. Delgado Peris, D. Dom´ınguez Vázquez, A. Escalante Del Valle, C. Fernandez Bedoya, J.P. Fernández Ramos, J. Flix, M.C. Fouz, P. Garcia-Abia, O. Gonzalez Lopez, S. Goy Lopez, J.M. Hernandez, M.I. Josa, E. Navarro De Martino, A. Pérez-Calero Yzquierdo, J. Puerta Pelayo, A. Quintario Olmeda, I. Redondo, L. Romero, M.S. Soares

Universidad Aut ´onoma de Madrid, Madrid, Spain

C. Albajar, J.F. de Troc ´oniz, M. Missiroli, D. Moran

Universidad de Oviedo, Oviedo, Spain

H. Brun, J. Cuevas, J. Fernandez Menendez, S. Folgueras, I. Gonzalez Caballero

Instituto de F´ısica de Cantabria (IFCA), CSIC-Universidad de Cantabria, Santander, Spain

J.A. Brochero Cifuentes, I.J. Cabrillo, A. Calderon, J. Duarte Campderros, M. Fernandez, G. Gomez, A. Graziano, A. Lopez Virto, J. Marco, R. Marco, C. Martinez Rivero, F. Matorras, F.J. Munoz Sanchez, J. Piedra Gomez, T. Rodrigo, A.Y. Rodr´ıguez-Marrero, A. Ruiz-Jimeno, L. Scodellaro, I. Vila, R. Vilar Cortabitarte

CERN, European Organization for Nuclear Research, Geneva, Switzerland

D. Abbaneo, E. Auffray, G. Auzinger, M. Bachtis, P. Baillon, A.H. Ball, D. Barney, A. Benaglia, J. Bendavid, L. Benhabib, J.F. Benitez, P. Bloch, A. Bocci, A. Bonato, O. Bondu, C. Botta,

H. Breuker, T. Camporesi, G. Cerminara, S. Colafranceschi35, M. D’Alfonso, D. d’Enterria,

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M. Dordevic, B. Dorney, N. Dupont-Sagorin, A. Elliott-Peisert, G. Franzoni, W. Funk, D. Gigi, K. Gill, D. Giordano, M. Girone, F. Glege, R. Guida, S. Gundacker, M. Guthoff, J. Hammer, M. Hansen, P. Harris, J. Hegeman, V. Innocente, P. Janot, K. Kousouris, K. Krajczar, P. Lecoq, C. Lourenc¸o, N. Magini, L. Malgeri, M. Mannelli, J. Marrouche, L. Masetti, F. Meijers, S. Mersi, E. Meschi, F. Moortgat, S. Morovic, M. Mulders, S. Orfanelli, L. Orsini, L. Pape, E. Perez,

A. Petrilli, G. Petrucciani, A. Pfeiffer, M. Pimi¨a, D. Piparo, M. Plagge, A. Racz, G. Rolandi36,

M. Rovere, H. Sakulin, C. Sch¨afer, C. Schwick, A. Sharma, P. Siegrist, P. Silva, M. Simon,

P. Sphicas37, D. Spiga, J. Steggemann, B. Stieger, M. Stoye, Y. Takahashi, D. Treille, A. Tsirou,

G.I. Veres18, N. Wardle, H.K. W ¨ohri, H. Wollny, W.D. Zeuner

Paul Scherrer Institut, Villigen, Switzerland

W. Bertl, K. Deiters, W. Erdmann, R. Horisberger, Q. Ingram, H.C. Kaestli, D. Kotlinski, U. Langenegger, D. Renker, T. Rohe

Institute for Particle Physics, ETH Zurich, Zurich, Switzerland

F. Bachmair, L. Bäni, L. Bianchini, M.A. Buchmann, B. Casal, N. Chanon, G. Dissertori, M. Dittmar, M. Donegà, M. D ünser, P. Eller, C. Grab, D. Hits, J. Hoss, G. Kasieczka, W. Lustermann, B. Mangano, A.C. Marini, M. Marionneau, P. Martinez Ruiz del Arbol,

M. Masciovecchio, D. Meister, N. Mohr, P. Musella, C. N¨ageli38, F. Nessi-Tedaldi, F. Pandolfi,

F. Pauss, L. Perrozzi, M. Peruzzi, M. Quittnat, L. Rebane, M. Rossini, A. Starodumov39_,

M. Takahashi, K. Theofilatos, R. Wallny, H.A. Weber

Universit¨at Z ¨urich, Zurich, Switzerland

C. Amsler40, M.F. Canelli, V. Chiochia, A. De Cosa, A. Hinzmann, T. Hreus, B. Kilminster,

C. Lange, J. Ngadiuba, D. Pinna, P. Robmann, F.J. Ronga, S. Taroni, Y. Yang

National Central University, Chung-Li, Taiwan

M. Cardaci, K.H. Chen, C. Ferro, C.M. Kuo, W. Lin, Y.J. Lu, R. Volpe, S.S. Yu

National Taiwan University (NTU), Taipei, Taiwan

P. Chang, Y.H. Chang, Y. Chao, K.F. Chen, P.H. Chen, C. Dietz, U. Grundler, W.-S. Hou, Y.F. Liu, R.-S. Lu, M. Mi ˜nano Moya, E. Petrakou, J.F. Tsai, Y.M. Tzeng, R. Wilken

Chulalongkorn University, Faculty of Science, Department of Physics, Bangkok, Thailand

B. Asavapibhop, G. Singh, N. Srimanobhas, N. Suwonjandee

Cukurova University, Adana, Turkey

A. Adiguzel, M.N. Bakirci41, S. Cerci42, C. Dozen, I. Dumanoglu, E. Eskut, S. Girgis,

G. Gokbulut, Y. Guler, E. Gurpinar, I. Hos, E.E. Kangal43, A. Kayis Topaksu, G. Onengut44,

K. Ozdemir45, S. Ozturk41, A. Polatoz, D. Sunar Cerci42, B. Tali42, H. Topakli41, M. Vergili,

C. Zorbilmez

Middle East Technical University, Physics Department, Ankara, Turkey

I.V. Akin, B. Bilin, S. Bilmis, H. Gamsizkan46, B. Isildak47, G. Karapinar48, K. Ocalan49,

S. Sekmen, U.E. Surat, M. Yalvac, M. Zeyrek

Bogazici University, Istanbul, Turkey

E.A. Albayrak50, E. G ¨ulmez, M. Kaya51, O. Kaya52, T. Yetkin53

Istanbul Technical University, Istanbul, Turkey

K. Cankocak, F.I. Vardarlı

National Scientific Center, Kharkov Institute of Physics and Technology, Kharkov, Ukraine

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University of Bristol, Bristol, United Kingdom

J.J. Brooke, E. Clement, D. Cussans, H. Flacher, J. Goldstein, M. Grimes, G.P. Heath, H.F. Heath,

J. Jacob, L. Kreczko, C. Lucas, Z. Meng, D.M. Newbold54, S. Paramesvaran, A. Poll, T. Sakuma,

S. Seif El Nasr-storey, S. Senkin, V.J. Smith

Rutherford Appleton Laboratory, Didcot, United Kingdom

K.W. Bell, A. Belyaev55, C. Brew, R.M. Brown, D.J.A. Cockerill, J.A. Coughlan, K. Harder,

S. Harper, E. Olaiya, D. Petyt, C.H. Shepherd-Themistocleous, A. Thea, I.R. Tomalin, T. Williams, W.J. Womersley, S.D. Worm

Imperial College, London, United Kingdom

M. Baber, R. Bainbridge, O. Buchmuller, D. Burton, D. Colling, N. Cripps, P. Dauncey, G. Davies, M. Della Negra, P. Dunne, A. Elwood, W. Ferguson, J. Fulcher, D. Futyan, G. Hall,

G. Iles, M. Jarvis, G. Karapostoli, M. Kenzie, R. Lane, R. Lucas54, L. Lyons, A.-M. Magnan,

S. Malik, B. Mathias, J. Nash, A. Nikitenko39, J. Pela, M. Pesaresi, K. Petridis, D.M. Raymond,

S. Rogerson, A. Rose, C. Seez, P. Sharp†, A. Tapper, M. Vazquez Acosta, T. Virdee, S.C. Zenz

Brunel University, Uxbridge, United Kingdom

J.E. Cole, P.R. Hobson, A. Khan, P. Kyberd, D. Leggat, D. Leslie, I.D. Reid, P. Symonds, L. Teodorescu, M. Turner

Baylor University, Waco, USA

J. Dittmann, K. Hatakeyama, A. Kasmi, H. Liu, N. Pastika, T. Scarborough, Z. Wu

The University of Alabama, Tuscaloosa, USA

O. Charaf, S.I. Cooper, C. Henderson, P. Rumerio

Boston University, Boston, USA

A. Avetisyan, T. Bose, C. Fantasia, P. Lawson, C. Richardson, J. Rohlf, J. St. John, L. Sulak

Brown University, Providence, USA

J. Alimena, E. Berry, S. Bhattacharya, G. Christopher, D. Cutts, Z. Demiragli, N. Dhingra, A. Ferapontov, A. Garabedian, U. Heintz, E. Laird, G. Landsberg, Z. Mao, M. Narain, S. Sagir, T. Sinthuprasith, T. Speer, J. Swanson

University of California, Davis, Davis, USA

R. Breedon, G. Breto, M. Calderon De La Barca Sanchez, S. Chauhan, M. Chertok, J. Conway, R. Conway, P.T. Cox, R. Erbacher, M. Gardner, W. Ko, R. Lander, M. Mulhearn, D. Pellett, J. Pilot, F. Ricci-Tam, S. Shalhout, J. Smith, M. Squires, D. Stolp, M. Tripathi, S. Wilbur, R. Yohay

University of California, Los Angeles, USA

R. Cousins, P. Everaerts, C. Farrell, J. Hauser, M. Ignatenko, G. Rakness, E. Takasugi, V. Valuev, M. Weber

University of California, Riverside, Riverside, USA

K. Burt, R. Clare, J. Ellison, J.W. Gary, G. Hanson, J. Heilman, M. Ivova Rikova, P. Jandir, E. Kennedy, F. Lacroix, O.R. Long, A. Luthra, M. Malberti, M. Olmedo Negrete, A. Shrinivas, S. Sumowidagdo, S. Wimpenny

University of California, San Diego, La Jolla, USA

J.G. Branson, G.B. Cerati, S. Cittolin, R.T. D’Agnolo, A. Holzner, R. Kelley, D. Klein, J. Letts, I. Macneill, D. Olivito, S. Padhi, C. Palmer, M. Pieri, M. Sani, V. Sharma, S. Simon, M. Tadel, Y. Tu, A. Vartak, C. Welke, F. W ¨urthwein, A. Yagil, G. Zevi Della Porta